Improvement in machines for coating wooden blocks



G. M, HY-ATT. Machine for Coating Wooden Block's.

Patented Feb. 11,1879.

WM/saws.

same soft or elastic.

UNITED STATES PATENT QEEIoE.

CHARLES M. HYATT, OF ALBANY, NEW YORK, ASSIGNOR TO THE EMBOSSINGCOMPANY.

IMPROVEMENT IN MACHINES FOR COATING WOODEN BLOCKS.

Specification forming part ofLetters Patent No. 2 I 2,229, datedFebruary 11, 1879 application filed November 27, 1878.

To all whom it may concern:

Be it known that I, CHARLES M. HYATT, of the city and county of Albany,and State of New York, have invented a new and'useful Improvement inMachines for Ooatin g WVooden Blocks and other articles, which inventionis fully set forth in the following specification, reference'bein g hadto the accompanying drawings, in which Figure 1 represents a side viewof my machine, partly in section. Fig. 2 is a plan or top view thereof.Fig. 3 is a cross-section of the same in the plane of the line 00 m,Fig. 2. Fig. 4 is a similar section thereof in the plane of the line yy, Fig. 2.

Similar letters indicate corresponding parts.

My invention has relation to a machine which is especially adapted forcoating wooden blocks, as used in the manufacture of alphabet-blocks,checkers, dominoes, and the like, with paint, enamel, or other likesubstance, but which is also practically useful for coating otherarticles; and it consists in certain novel combinations of parts, ashereinafter fullyde-v scribed, and pointed out in the claims, apreliminary description thereof being, therefore, deemed unnecessary.

In the drawings, the letter A designates the machine -frame, in whichare mounted .two rollers, B B, supporting an endless apron, (J. At asuitable distance above the endless apron O are situated two (moreorless) coating-rollers, D D, which are both arranged in superficialcontact with a distributin g-roller, E, on which rests apressure-roller, F, the paint or other substance being deposited on thispressureroller by a stop-cock, a, emanating from a trough or reservoir,G, and being thereby applied to the surface of the distributing-roller,which carries the same to the coating-rollers, so that if one or morewooden blocks or other articles are placed on the endless apron O, andthis apron is moved forward, the paint or other substance is applied tothe surfaces of the art-icles by the coating-rollers.

The coating-rollers D D are preferablycovered with a suitablecomposition to'render the The pressure-roller F serves to spread thepaint or other substance over the surface of the distributing-roller E,and thus improve the operation of the machine but this roller F is notindispensable.

The distributing-roller E and pressure-roller F have their bearings instandards A, rising from the machine-frame, While the coatingrollersD Dare mounted in brackets b, attached to said standards, these bracketsbeing preferably made adjustable. Motion is imparted to thedistributing-roller E by a crank or other suitable means, and thisroller engages with the coating-rollers D D, while it is connected withone of the apron-supporting rollers B B in such a manner that theendless apron C receives its motion therefrom, and is caused to travelwith the same speed as the coatingrollers.

The distributing-roller E is feathered on its shaft H, so that it issusceptible of a longitudinal movement thereon, and it is connected to aslide, 0, (best seen in Fig. 3,) which en gages with a cam, I, mountedon said shaft, so that when a revolving motion is imparted to thedistributingroller it also receives a longitudinally-reciprocatin gmotion.

The reservoir G is supported by an arm, J, which is secured to the slide0, so that simultaneously with the reciprocating movement of thedistributing-roller E a corresponding motion is imparted to thereservoir lengthwise of said roller.

By this arrangement a very uniform distribution of the paint or othersubstance both from the reservoir G to the distributing-roller E andfrom this roller to the coating-rollers .D D is produced.

At a point beneath the coating-rollers D D the endless apron C rests ona bed, K, which serves to resist the pressure of the coatingrollers, andis supported by springs d, so that the bed is adapted to yield, and thusaccommodates itself to blocks or articles of different heights. 1

WVith the springs 61 are combined adjustin gsorews 0, whereby the normalposition of the bed K can be regulated.

On opposite sides of the endless apron O are situated converging guidesL, which are secured to the bed K or to the machine-frame,

and serve to range the wooden blocks or other articles resting on theapron in line after they have been coated.

Near one end of the endless apron G is situated a stop, N, having theform of a bent arm, one part of which extends across the apron, whilethe other is secured to the machine-frame. This stop N arrests theblocks or other articles carried along by the apron after they have beencoated, so that they can be swept or moved off of the apron in a lateraldirection. For this purpose I make use of a clearer-bar, O, which issituated adjacent to the stop N, and is connected to a lever, P, bymeans of a frame, 0. In its normal position this clearer bar 0 is at ornear one of the edges of the apron, in which position it is held by theaction of a spring, f, while, when the lever P is moved in the directionof the arrow indicated in Fig. 2 the bar is caused to sweep across theapron, so as to clear or free the same of any blocks or articles that itmay contain. The blocks or articles thus swept off of the apron arereceived on a table, R, secured to a suitable part of the machine-frame.

I am aware that a machine for coating or graining boards has beenprovided with an endless belt, arranged a little distance above a rigidbed, and traveling under an impression-roller, the belt serving to feedthe board under the roller; butit is the rigid unyielding bed thatsustains the'board against the pressure of the roller, and owing to therigidity of said bed the machine is not adapted to operate at oneadjustment upon small articles varying in thickness.

Were the rigid bed omitted, and the pressure required to be sustained bythe belt alone, said belt would soon be thereby stretched and caused tosag to such an extent as to be ineffective for the purpose intended, andeven when new and tight the required pressure would cause the belt toslip upon its supporting-rollers and fail to properly carry forward thearticles fed under the roller.

There has also been known a graining-machine having a bed-rollerprovided with a yielding covering arranged to support the article to begrained against an impression roller; but, having no feed-belt, suchmachine is not adapted for operation upon small articles, as sucharticles would require to be fed one by one between the rollers, andwould then fall off on the other side instead of being carried away fromthe rollerin a proper position to be handled and removed without injuryto the fresh coating which has been applied. Such arrangements I do notclaim.

In my machine the endless belt permits the feeding in a row of the smallarticles upon which it is designed to operate, the yielding bed permitsthe operation upon small articles of varying thicknesses, and afterpassing between the rollers they are removed away therefrom inconvenient position for handling and removal without injury to thefreshly-applied coatings.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, in a machine for coating wooden blocks and otherarticles, of an endless apron or carrier, one or morecoatingrollerssituated above said apron, a distributing roller, which isarranged in superficial contact with the coating-rollers and featheredon its shaft, a reservoir to supply the distributing-roller, andmechanism whereby a reciprocating motion is imparted to thedistributing-roller, all adapted to operate substantially as described.

2. The combination, in a machine for coating wooden blocks and otherarticles, of an endless apron or carrier, one or more coatin rollerssituated above said apron, a distributin g-roller, arranged insuperficial contact with the coating-rollers, a reservoir to supply thedistributing-roller, and mechanism whereby a reciprocating motion isimparted both to the distributing-roller and to the reservoir, alladapted to operate substantially as described.

3. The combination, in'a machine for coating Wooden blocks and otherarticles, of an endless apron or carrier, suitable coating devicessituated above the endless apron, and a separate yielding bed arrangedbeneath the upper part of the endless apron, substantially as and forthe purpose described.

4. The combination, in a machine for coating wooden blocks and otherarticles, of an endless apron or carrier, suitable coating de vicesarranged above the endless apron, and converging guides arranged onopposite sides of the endless apron, substantially as and for thepurpose described.

5. The combination, in a machine for 'coatiug wooden blocks and otherarticles, of an endless apron or carrier, suitable coating de vicesarranged above the endless apron, and a stop extending across the apron,substan tially as and for the purpose described.

6. The combination, in a machine for coating wooden blocks and otherarticles, of an endless apron or carrier, suitable coating devicesarranged above the endless apron, a stop extending across the endlessapron, a clearer bar adapted to be moved over 'or across the endlessapron adjacent to the stop, and a lever for operating said clearer-bar,all adapted to operate substantially as described.

In testimony that I claim the foregoing I hereunto set my hand and sealthis 25th day of November, 1878.

CHARLES M. HYATT. [L. s]

Witnesses:

ROBERT C. PRUYN, OHAs. L. PRUYN.

